[INFO] fetching crate dataset-writer 2.0.0...
[INFO] testing dataset-writer-2.0.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate dataset-writer 2.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate dataset-writer 2.0.0
[INFO] finished tweaking crates.io crate dataset-writer 2.0.0
[INFO] tweaked toml for crates.io crate dataset-writer 2.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dataset-writer 2.0.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dataset-writer 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f08fb401201401e3b4bbf14ff1a47439e53e6a16fff350a911a7816f9875ac8d
[INFO] running `Command { std: "docker" "start" "-a" "f08fb401201401e3b4bbf14ff1a47439e53e6a16fff350a911a7816f9875ac8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f08fb401201401e3b4bbf14ff1a47439e53e6a16fff350a911a7816f9875ac8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08fb401201401e3b4bbf14ff1a47439e53e6a16fff350a911a7816f9875ac8d", kill_on_drop: false }`
[INFO] [stdout] f08fb401201401e3b4bbf14ff1a47439e53e6a16fff350a911a7816f9875ac8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0176060cebd7436b6357dd54098af53ab53f8975e488543fd66f1f2d7bac9550
[INFO] running `Command { std: "docker" "start" "-a" "0176060cebd7436b6357dd54098af53ab53f8975e488543fd66f1f2d7bac9550", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.95
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[INFO] [stderr]    Compiling num-integer v0.1.46
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[INFO] [stderr]    Compiling lexical-core v1.0.5
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[INFO] [stderr]    Compiling csv-core v0.1.12
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[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling serde v1.0.228
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[INFO] [stderr]    Compiling arrow v57.0.0
[INFO] [stderr]    Compiling dataset-writer v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:30
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<W>> {
[INFO] [stdout]     |                              ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<'_, W>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "0176060cebd7436b6357dd54098af53ab53f8975e488543fd66f1f2d7bac9550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0176060cebd7436b6357dd54098af53ab53f8975e488543fd66f1f2d7bac9550", kill_on_drop: false }`
[INFO] [stdout] 0176060cebd7436b6357dd54098af53ab53f8975e488543fd66f1f2d7bac9550
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 781bc79263d106a3c5e5eb44a211295269b5c802c5ed9d54f891d30ab56ab769
[INFO] running `Command { std: "docker" "start" "-a" "781bc79263d106a3c5e5eb44a211295269b5c802c5ed9d54f891d30ab56ab769", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling arrow-array v57.0.0
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling arrow-select v57.0.0
[INFO] [stderr]    Compiling arrow-row v57.0.0
[INFO] [stderr]    Compiling arrow-arith v57.0.0
[INFO] [stderr]    Compiling arrow-cast v57.0.0
[INFO] [stderr]    Compiling arrow-ord v57.0.0
[INFO] [stderr]    Compiling arrow-string v57.0.0
[INFO] [stderr]    Compiling arrow-csv v57.0.0
[INFO] [stderr]    Compiling arrow v57.0.0
[INFO] [stderr]    Compiling dataset-writer v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:30
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<W>> {
[INFO] [stdout]     |                              ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<'_, W>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:112:30
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<W>> {
[INFO] [stdout]     |                              ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<'_, W>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 58.78s
[INFO] running `Command { std: "docker" "inspect" "781bc79263d106a3c5e5eb44a211295269b5c802c5ed9d54f891d30ab56ab769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781bc79263d106a3c5e5eb44a211295269b5c802c5ed9d54f891d30ab56ab769", kill_on_drop: false }`
[INFO] [stdout] 781bc79263d106a3c5e5eb44a211295269b5c802c5ed9d54f891d30ab56ab769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f16301c5f36e1b0653a6312961652f9c0916d2e60b18bd0deb2d110adb84fbe
[INFO] running `Command { std: "docker" "start" "-a" "6f16301c5f36e1b0653a6312961652f9c0916d2e60b18bd0deb2d110adb84fbe", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:112:30
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<W>> {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                              ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn get_thread_writer(&self) -> Result<RefMut<'_, W>> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: `dataset-writer` (lib) generated 1 warning (run `cargo fix --lib -p dataset-writer` to apply 1 suggestion)
[INFO] [stderr] warning: `dataset-writer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dataset_writer-a03f45e8cc54547a)
[INFO] [stderr]    Doc-tests dataset_writer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f16301c5f36e1b0653a6312961652f9c0916d2e60b18bd0deb2d110adb84fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f16301c5f36e1b0653a6312961652f9c0916d2e60b18bd0deb2d110adb84fbe", kill_on_drop: false }`
[INFO] [stdout] 6f16301c5f36e1b0653a6312961652f9c0916d2e60b18bd0deb2d110adb84fbe
